#include "mymemory.h"
#include "clockvector.h"
-#define VALUE_NONE -1
+/** Note that this value can be legitimately used by a program, and
+ hence by iteself does not indicate no value. */
+
+#define VALUE_NONE 1234567890
/** @brief Represents an action type, identifying one of several types of
* ModelAction */
typedef enum action_type {
THREAD_CREATE, /**< A thread creation action */
+ THREAD_START, /**< First action in each thread */
THREAD_YIELD, /**< A thread yield action */
THREAD_JOIN, /**< A thread join action */
ATOMIC_READ, /**< An atomic read action */
*/
class ModelAction {
public:
- ModelAction(action_type_t type, memory_order order, void *loc, int value = VALUE_NONE);
+ ModelAction(action_type_t type, memory_order order, void *loc, uint64_t value = VALUE_NONE);
~ModelAction();
void print(void) const;
memory_order get_mo() const { return order; }
void * get_location() const { return location; }
modelclock_t get_seq_number() const { return seq_number; }
- int get_value() const { return value; }
+ uint64_t get_value() const { return value; }
const ModelAction * get_reads_from() const { return reads_from; }
Node * get_node() const { return node; }
/** The thread id that performed this action. */
thread_id_t tid;
-
+
/** The value read or written (if RMW, then the value written). This
* should probably be something longer. */
- int value;
+ uint64_t value;
/** The action that this action reads from. Only valid for reads */
const ModelAction *reads_from;
/** A back reference to a Node in NodeStack, if this ModelAction is
* saved on the NodeStack. */
Node *node;
-
+
modelclock_t seq_number;
/** The clock vector stored with this action; only needed if this